Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 6 - For Thought and Discussion - Page 105: 7



Work Step by Step

Over the course of a total arc, the tension force is doing no work, for the amount of energy of the pendulum is not changing. (The energy is just alternating between gravitational potential energy and kinetic energy.)
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